#include "Add.h"
#include "Sub.h"
#include <stdio.h>

int main(){
  int x = 10;
  int y = 20;
  printf("%d + %d = %d\n",x,y,Add(x,y));
  printf("%d - %d = %d\n",x,y,Sub(x,y));
  return 0;
}
